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1. mapMaybeWithKey :: (k -> a -> Maybe b) -> NEMap k a -> Map k b

   nonempty-containers	Data.Map.NonEmpty

   O(n). Map keys/values and collect the Just results. Returns a potentially empty map (Map), because the function could potentially return Nothing on all items in the NEMap.

   let f k _ = if k < 5 then Just ("key : " ++ (show k)) else Nothing
   mapMaybeWithKey f (fromList ((5,"a") :| [(3,"b")])) == Data.Map.singleton 3 "key : 3"
   

2. mapMonotonic :: (a -> b) -> NESet a -> NESet b

   nonempty-containers	Data.Set.NonEmpty

   O(n). mapMonotonic f s == map f s, but works only when f is strictly increasing. The precondition is not checked. Semi-formally, we have:

   and [x < y ==> f x < f y | x <- ls, y <- ls]
   ==> mapMonotonic f s == map f s
   where ls = Data.Foldable.toList s
   

3. mapM_ :: (Foldable t, Monad m) => (a -> m b) -> t a -> m ()

   prelude-compat	Prelude2010

   Map each element of a structure to a monadic action, evaluate these actions from left to right, and ignore the results. For a version that doesn't ignore the results see mapM. mapM_ is just like traverse_, but specialised to monadic actions.

4. mapM_ :: Monad m => (a -> m b) -> Vector a -> m ()

   rebase	Rebase.Data.Vector

   No documentation available.

5. mapMaybe :: (a -> Maybe b) -> Vector a -> Vector b

   rebase	Rebase.Data.Vector

   No documentation available.

6. mapMaybeM :: Monad m => (a -> m (Maybe b)) -> Vector a -> m (Vector b)

   rebase	Rebase.Data.Vector

   No documentation available.

7. mapM_ :: Monad m => (a -> m b) -> Stream m a -> m ()

   rebase	Rebase.Data.Vector.Fusion.Stream.Monadic

   Execute a monadic action for each element of the Stream

8. mapMaybe :: forall (m :: Type -> Type) a b . Monad m => (a -> Maybe b) -> Stream m a -> Stream m b

   rebase	Rebase.Data.Vector.Fusion.Stream.Monadic

   No documentation available.

9. mapMaybeM :: Monad m => (a -> m (Maybe b)) -> Stream m a -> Stream m b

   rebase	Rebase.Data.Vector.Fusion.Stream.Monadic

   Apply monadic function to each element and drop all Nothings

10. mapM_ :: (Monad m, Vector v a) => (a -> m b) -> v a -> m ()

    rebase	Rebase.Data.Vector.Generic

    No documentation available.

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